Granted Patent
Utility
US 4,311,226 · App. 06/117,220
Trapped-axle conveyor roll
Inventors:
Glen Thompson, Joe Way
Patented Case
View Patent ↗
Granted: Jan 19, 1982
Filed: Jan 28, 1980
Inventors
Glen Thompson
Joe Way
Assignee (at issue)
Gifford-Hill & Company, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.